We have various types of overhead line and substation insulators. Generally they can be classified as: Post insulators Cap and…
The function of a ground fault interrupter (GFI) is to disconnect the power if a current leakage to ground is…
Single-phase Power System To help us understand single-phase power system, consider the sine wave shown in figure 1(a) below of…
Causes of Power Surges Transient overvoltages in power systems may arise from a number of sources. Power disturbances resulting from…
Switchgear can be defined as equipment used for controlling, regulating and switching ON and OFF power circuits. Switchgear units range…
Testing of power transformers is continuous monitoring of faults in all units of such equipment and their timely removal after…
Thomas A. Edison’s work on electric light led to the concept of a centrally located power station with distributed electric…
